Quick Fix Synthetic Urine is clean, pre-mixed laboratory urine. Instead of generating the urine in a human body, Spectrum Labs has perfected a means of creating urine in a laboratory environment. This laboratory process results in a cleaner, fresher urine that is toxin free and balanced for pH, specific gravity, creatinine, urea, uric acid, and several other urine characteristics. Quick Fix is also designed to be unisex, therefore it can be used by either a man or woman. Each box of Quick Fix Synthetic Urine contains a bottle of quick fix urine, one heat pack, a flip top cap, and a temperature strip that reads between 90 and 100 degrees. Once this synthetic urine is warmed between 90 and 100 degrees in a microwave for up to 10 seconds it becomes suitable for use. Attach the heat pack and keep it warm for up to 8 hours.